is therefore at least worth while, if not essential, to know something of the minuter contemporary history, and those who can read the seventh, eighth, and ninth books of Villani’s _Florentine History_--not yet, unfortunately, translated into English--will find their reward. Those, again, who wish to place themselves as nearly as may be at the point from which Dante looked at ethical and metaphysical problems, will hardly be satisfied with an occasional quotation from Aristotle or Aquinas. If, as may well be the case, they cannot spare the time for systematic reading of those somewhat exacting authors, they should at least be at the trouble of acquiring such a knowledge of their systems, and of the place which they hold in the widening of men’s thoughts, as may be obtained from Ueberweg or some other approved history of philosophy. So for physical science and natural history, those who have not the leisure to read Aristotle (again), or Pliny, or Brunetto’s _Trésor_, may get from the fourth book of Whewell’s _History of the Inductive Sciences_, and from parts of Humboldt’s _Cosmos_, some idea of the way in which Dante would regard the external world. But one book, among all others, was undoubtedly the main instrument in the formation of Dante’s mind and character. Few professed Churchmen have ever been so saturated with the language and the spirit of the Bible as this lay theologian. It was this, indeed, which seems to have specially impressed his contemporaries. “Theologus Dantes nullius dogmatis expers” is the title which the epitaph of his friend Joannes de Virgilio confers upon him in its opening line. And among all the books of the “Sacred Library,” as an earlier age called it, we can see that two had a predominant place in his memory--the prophecy of Jeremiah and the Book of Psalms. In these two we may find the solution of some of his most obscure symbolism, and careful study of these will do perhaps more than anything to help the student to read with understanding. Of course those who read Latin should use the Vulgate rather than the English version, for the key to an allusion sometimes lies in a word or a phrase, the identity of which is lost in an alien language.